Display Windows Application product version

Whether the application is standalone or click-once this works always

Displays version information in label named ‘lblVersionInfo’

if (ApplicationDeployment.IsNetworkDeployed)
{
    ApplicationDeployment appDeployment = ApplicationDeployment.CurrentDeployment;
    lblVersionInfo.Text = appDeployment.CurrentVersion.Major.ToString() + "." + appDeployment.CurrentVersion.MajorRevision.ToString() + "." + appDeployment.CurrentVersion.Minor.ToString() + "." + appDeployment.CurrentVersion.MinorRevision.ToString();
}
else
{
    lblVersionInfo.Text = Application.ProductVersion;
}

And do not forget to add using block in your application

using System.Deployment.Application;

Sample screen:

About Box - Product Version Dialog

Related articles

• Version String Management in Python: Introducing python-versioneer (mozilla.com)

 

Display row number in WinForms DataGridView

In WinForms Applications, to display the row number in the row header, we could use the RowPostPaint event of DataGridView control.

Usage:

Suppose grid is named as dgvUserDetails

Delegate

        this.dgvUserDetails.RowPostPaint += new System.Windows.Forms.DataGridViewRowPostPaintEventHandler(this.dgvUserDetails_RowPostPaint);

Code

private void dgvUserDetails_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
{
        using (SolidBrush b = new SolidBrush(dgvUserDetails.RowHeadersDefaultCellStyle.ForeColor))
        {
              e.Graphics.DrawString((e.RowIndex + 1).ToString(), e.InheritedRowStyle.Font, b, e.RowBounds.Location.X + 10, e.RowBounds.Location.Y + 4);
        }
}

Don’t try to manipulate the Code part much because the X and Y are calculated co-ordinates in the row header area or you can customizse test it yourself to see the various results.

Output:

Related articles

• C# Data Grid View (stackoverflow.com)
• Update DataGridView after end edit (stackoverflow.com)

 

How to convert an IEnumerable to JSON

You can do it like this using .NET Framework itself and without using any 3rd party tools

using System.Web.Script.Serialization;

public class Json
{
    public string getJson()
    {
       // some code //
       var products = // IEnumerable object //
       string json = new JavaScriptSerializer().Serialize(products);
       // some code //
       return json;
    }
}

Serializing Usage:

IEnumerable<int> sequenceOfInts = new int[] { 1, 2, 3 };
IEnumerable<Foo> sequenceOfFoos = new Foo[] { new Foo() { Bar = "A" }, new Foo() { Bar = "B" } };

var serializer = new System.Web.Script.Serialization.JavaScriptSerializer();
string outputOfInts = serializer.Serialize(sequenceOfInts);
string outputOfFoos = serializer.Serialize(sequenceOfFoos);

Output:

[1,2,3]
[{"Bar":"A"},{"Bar":"B"}]

Deserializing Usage:

IEnumerable<int> sequenceOfInts = serializer.Deserialize<IEnumerable<int>>(outputOfInts);
IEnumerable<Foo> sequenceOfFoos = serializer.Deserialize<IEnumerable<Foo>>(outputOfFoos);

Reference links: StackOverflow.com

Related articles

• Why Standard Extension Method on IEnumerables (stackoverflow.com)
• distributing json array output to each (stackoverflow.com)
• Modelbinding IEnumerable in ASP.NET MVC POST? (stackoverflow.com)

 

Printing in IIS using ASP.NET or Web services

You can try as below:

1. Changing the account that ASP.NET runs under.

The IIS Worker Process runs as Network Service and the ASP.NET Worker Process runs as ASPNET by default. So to access the Installed Printers you have to change it to run under Local System Account.

2. You can impersonate the asp.net site

When the IIS Worker Process or the ASP.NET Worker Process starts a Web application, the Web application inherits the identity of the process if impersonation is disabled. (Impersonation is the process of allowing a thread to run under a different account from its process.) However, if impersonation is enabled, each Web application runs under the user account that is authenticated by IIS or the user account that is configured in the Web.config file. Impersonation can be enabled in either of the following two ways in Web.config:

<identity impersonate="true"/>

This allows the Web application to run using the identity that was authenticated by IIS.

<identity impersonate="true"
 userName="SomeUserAccount"
 password="SomePassword"/>

This allows the Web application to run using a specific identity.

If you have the network printer in my printers then it will show up in Installed printers.

Reference links: Stackoverflow.com and Bluevisionsoftware.com

 

How To: show loading or progress message in website in ASP.NET

ASP.NET Display “Loading…” message while update panel is updating

You can use code as below when

using Image as Loading:

 
<asp:UpdateProgress id="updateProgress" runat="server">
     <ProgressTemplate>
            <div style="position: fixed; text-align: center; height: 100%; width: 100%; top: 0; right: 0; left: 0; z-index: 9999999; background-color: #000000; opacity: 0.7;">
                    <asp:Image ID="imgUpdateProgress" runat="server" ImageUrl="~/images/ajax-loader.gif" AlternateText="Loading ..." ToolTip="Loading ..." style="padding: 10px;position:fixed;top:45%;left:50%;" />
            </div>
     </ProgressTemplate>
</asp:UpdateProgress>

using Text as Loading:

 
 <asp:UpdateProgress id="updateProgress" runat="server">
         <ProgressTemplate>
                <div style="position: fixed; text-align: center; height: 100%; width: 100%; top: 0; right: 0; left: 0; z-index: 9999999; background-color: #000000; opacity: 0.7;">
                      <span style="border-width: 0px; position: fixed; padding: 50px; background-color: #FFFFFF; font-size: 36px; left: 40%; top: 40%;">Loading ...</span>
                </div>
         </ProgressTemplate>
    </asp:UpdateProgress>


Reference: StackOverflow.com